duke_activity_status_index: Duke Activity Status Index (DASI)

Description

Calculates the Duke Activity Status Index (DASI), a self-administered questionnaire that measures a patient's functional capacity. The DASI score (0-58.2) correlates with peak oxygen uptake (VO2 peak), providing an estimate of cardiovascular fitness and functional reserve.

Usage

duke_activity_status_index(self_care, walk_indoors, walk_blocks, climb_stairs,
                           run_short, light_housework, moderate_housework,
                           heavy_housework, yard_work, sexual_relations,
                           moderate_recreation, strenuous_sports)

Value

A list containing:

DASI_Score: The calculated DASI score (Range 0-58.2).
Estimated_VO2_Peak_mL_kg_min: Estimated peak oxygen uptake.
Estimated_METs: Estimated metabolic equivalents.

Arguments

self_care: Numeric (0 or 1). Can you take care of yourself (eat, dress, bathe, or use the toilet)?
walk_indoors: Numeric (0 or 1). Can you walk indoors, such as around your house?
walk_blocks: Numeric (0 or 1). Can you walk a block or two on level ground?
climb_stairs: Numeric (0 or 1). Can you climb a flight of stairs or walk up a hill?
run_short: Numeric (0 or 1). Can you run a short distance?
light_housework: Numeric (0 or 1). Can you do light work around the house like dusting or washing dishes?
moderate_housework: Numeric (0 or 1). Can you do moderate work around the house like vacuuming, sweeping floors, or carrying groceries?
heavy_housework: Numeric (0 or 1). Can you do heavy work around the house like scrubbing floors or lifting or moving heavy furniture?
yard_work: Numeric (0 or 1). Can you do yard work like raking leaves, weeding, or pushing a power mower?
sexual_relations: Numeric (0 or 1). Can you have sexual relations?
moderate_recreation: Numeric (0 or 1). Can you participate in moderate recreational activities like golf, bowling, dancing, doubles tennis, or throwing a baseball or football?
strenuous_sports: Numeric (0 or 1). Can you participate in strenuous sports like swimming, singles tennis, football, basketball, or skiing?

References

Hlatky MA, Boineau RE, Higginbotham MB, et al. A brief self-administered questionnaire to determine functional capacity (the Duke Activity Status Index). Am J Cardiol. 1989;64(10):651-654. doi:10.1016/0002-9149(89)90496-7

Examples

Run this code


# Example 1: High Capacity
# Can do everything
duke_activity_status_index(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1)

# Example 2: Low Capacity
# Can only care for self and walk indoors
duke_activity_status_index(1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)

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